Not so because they can only get it to work on particles and
molecules so far.

From the abstract
submitted by Doctors David B. Ruffner and
David G. Grier, of the Department of Physics and
Center for Soft Matter Research, NYU:

We experimentally demonstrate a class of tractor beams
created by coherently superposing coaxial Bessel beams. These
optical conveyors have periodic intensity variations along their
axes that act as highly effective optical traps for
micrometer-scale objects. Trapped objects can be
moved selectively upstream or downstream along the
conveyor by appropriately changing the Bessel beams’ relative
phase. The same methods used to project a single optical conveyor
can project arrays of independent optical conveyors,
allowing bidirectional transport in three
dimensions.

To save you the trouble of reading through the paper, basically
this is a huge development because previously, "tractor"
beams, or optical conveyors, needed two points
of origin, which would oscillate particle output to push
the principal to the left or right of the beam.

This new research needs only one point of origin.

From their paper:

Here, we describe another category of tractor beams derived
from the optical conveyor belts introduced in
Refs. [2, 3,
4]that can be projected from a single
source and can transport material bidirectionally without the aid
of outside forces. A one-sided optical conveyor is
formed by projecting two or more coherent Bessel beams along the
same axis and systematically varying their relative phase.

Now in Physical Review
Letters, David Ruffner and David Grier of New York
University describe pushing and pulling particles over relatively
long distances—tens of microns and, in principle, much
longer—using a “tractor beam” that could prove more
versatile.

Although the technique won’t be snagging enemy spacecraft
anytime soon, it could be a powerful way to manipulate objects
under a microscope.

There are military applications for sure, nonetheless it's
still a long way from snatching galactic princesses out of space,
but, hey, it's a start.